Window backlight does not rotate after changing device settings

Question

I create a UIView with a label inside an AppDelegate and display it as follows:

[window addSubview:self.roundedCornerView]; 

The problem is that when I rotate the device, the view with the mark does not rotate at all. The text on the label is also in the wrong orientation. The window in my application received another view, which is a view of UIViewControllers, and it rotates perfectly.

Do I need to create another UIViewController in my AppDelegate and attach the created view to it, then subclass it and enable interface orientation to round the CornerView for rotation?

UPDATE Okay, I tried to do this by creating a new ViewController and subclassing it here, this is the code in my AppDelegate:

  ActivityIndicatorWithLabelViewController *aiWithLabel = [[[ActivityIndicatorWithLabelViewController alloc] init] autorelease]; aiWithLabel.textOfTheLabel = text; [window addSubview:aiWithLabel.view]; 

The ActivityIndicatorWithLabelViewController class can be seen here:

 // // ActivityIndicatorWithLabelViewController.m // LOFT // // Created by Marcin Zyga on 15.11.2011. // Copyright (c) 2011 __MyCompanyName__. All rights reserved. // #import "ActivityIndicatorWithLabelViewController.h" @implementation ActivityIndicatorWithLabelViewController @synthesize roundedCornerView; @synthesize textActivityIndicatorLabel; @synthesize textOfTheLabel; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } #pragma mark - View lifecycle /* // Implement loadView to create a view hierarchy programmatically, without using a nib. - (void)loadView { } */ // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; UIActivityIndicatorView *mainApplicationActivityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; mainApplicationActivityIndicatorView.frame = CGRectMake(80, 80, 40, 40); mainApplicationActivityIndicatorView.hidesWhenStopped = YES; //self.roundedCornerView = [[[UIView alloc] initWithFrame:CGRectMake(280, 400, 200, 200)] autorelease]; self.roundedCornerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)] autorelease]; roundedCornerView.backgroundColor = [UIColor blackColor]; roundedCornerView.alpha = 0.9f; roundedCornerView.layer.cornerRadius = 12.0; [roundedCornerView addSubview:mainApplicationActivityIndicatorView]; [mainApplicationActivityIndicatorView startAnimating]; // self.roundedCornerView.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth; //self.roundedCornerView.autoresizesSubviews = YES; self.textActivityIndicatorLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 150, 200, 50)]; self.textActivityIndicatorLabel.backgroundColor = [UIColor clearColor]; self.textActivityIndicatorLabel.textAlignment = UITextAlignmentCenter; self.textActivityIndicatorLabel.textColor = [UIColor whiteColor]; self.textActivityIndicatorLabel.font = [UIFont systemFontOfSize:22]; self.textActivityIndicatorLabel.text = @""; // self.textActivityIndicatorLabel.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth; [self.roundedCornerView addSubview:textActivityIndicatorLabel]; self.textActivityIndicatorLabel.text = textOfTheLabel; self.view.frame = CGRectMake(280, 400, 200, 200); [self.view addSubview:self.roundedCornerView]; //self.view = self.roundedCornerView; } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // eg self.myOutlet = nil; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations if (UIInterfaceOrientationIsLandscape(interfaceOrientation)) { [self.textActivityIndicatorLabel removeFromSuperview]; [self.textActivityIndicatorLabel release]; self.textActivityIndicatorLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 50, 50)]; self.textActivityIndicatorLabel.backgroundColor = [UIColor clearColor]; self.textActivityIndicatorLabel.textAlignment = UITextAlignmentCenter; self.textActivityIndicatorLabel.textColor = [UIColor whiteColor]; self.textActivityIndicatorLabel.font = [UIFont systemFontOfSize:22]; self.textActivityIndicatorLabel.text = @"Landscape"; [self.roundedCornerView addSubview:textActivityIndicatorLabel]; NSLog(@"LANDSCAPE"); } NSLog(@"ENTERING SUPPORTED ORIENTATION!"); return YES; } @end 

As you can see, there is a debugging code here. When I rotate the device from an outsider to the terrain, I get SUPPORT ORIENTATION! as well as LADNSCAPE NSLog. Deleting a shortcut works fine, but when I add a new one, it still displays (text) in the wrong orientation. What am I doing wrong?

Answer 1

The decision to follow the steps below:

• In the subView.m file, add the code on top of your view interface:

   typedef NS_OPTIONS(NSUInteger, AGInterfaceOrientationMask) { AGInterfaceOrientationMaskPortrait = (1 << UIInterfaceOrientationPortrait), AGInterfaceOrientationMaskLandscapeLeft = (1 << UIInterfaceOrientationLandscapeLeft), AGInterfaceOrientationMaskLandscapeRight = (1 << UIInterfaceOrientationLandscapeRight), AGInterfaceOrientationMaskPortraitUpsideDown = (1 << UIInterfaceOrientationPortraitUpsideDown), AGInterfaceOrientationMaskLandscape = (AGInterfaceOrientationMaskLandscapeLeft | AGInterfaceOrientationMaskLandscapeRight), AGInterfaceOrientationMaskAll = (AGInterfaceOrientationMaskPortrait | AGInterfaceOrientationMaskLandscapeLeft | AGInterfaceOrientationMaskLandscapeRight | AGInterfaceOrientationMaskPortraitUpsideDown), AGInterfaceOrientationMaskAllButUpsideDown = (AGInterfaceOrientationMaskPortrait | AGInterfaceOrientationMaskLandscapeLeft | AGInterfaceOrientationMaskLandscapeRight), } 

• In the subView.m file add the code

   #pragma mark - Orientation - (void)statusBarFrameOrOrientationChanged:(NSNotification *)notification { /* This notification is most likely triggered inside an animation block, therefore no animation is needed to perform this nice transition. */ [self rotateAccordingToStatusBarOrientationAndSupportedOrientations]; } - (void)rotateAccordingToStatusBarOrientationAndSupportedOrientations { UIInterfaceOrientation orientation = [self desiredOrientation]; CGFloat angle = [self UIInterfaceOrientationAngleOfOrientation:orientation]; CGFloat statusBarHeight = [[self class] getStatusBarHeight]; UIInterfaceOrientation statusBarOrientation = [UIApplication sharedApplication].statusBarOrientation; CGAffineTransform transform = CGAffineTransformMakeRotation(angle); CGRect frame = [[self class] rectInWindowBounds:self.view.window.bounds statusBarOrientation:statusBarOrientation statusBarHeight:statusBarHeight]; [self setIfNotEqualTransform:transform frame:frame]; CGRect rect = btnClose.frame; rect.origin.x = (subView.frame.origin.x+subView.frame.size.width)-(rect.size.width/2); rect.origin.y = subView.frame.origin.y-(rect.size.height/2); btnClose.frame = rect; } - (void)setIfNotEqualTransform:(CGAffineTransform)transform frame:(CGRect)frame { if(!CGAffineTransformEqualToTransform(self.view.transform, transform)) { self.view.transform = transform; } if(!CGRectEqualToRect(self.view.frame, frame)) { self.view.frame = frame; } } + (CGFloat)getStatusBarHeight { UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation; if(UIInterfaceOrientationIsLandscape(orientation)) { return [UIApplication sharedApplication].statusBarFrame.size.width; } else { return [UIApplication sharedApplication].statusBarFrame.size.height; } } static BOOL IS_BELOW_IOS_7() { static BOOL answer; static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ answer = [[[UIDevice currentDevice] systemVersion] floatValue] < 7.0; }); return answer; } + (CGRect)rectInWindowBounds:(CGRect)windowBounds statusBarOrientation:(UIInterfaceOrientation)statusBarOrientation statusBarHeight:(CGFloat)statusBarHeight { CGRect frame = windowBounds; if(IS_BELOW_IOS_7()) { frame.origin.x += statusBarOrientation == UIInterfaceOrientationLandscapeLeft ? statusBarHeight : 0; frame.origin.y += statusBarOrientation == UIInterfaceOrientationPortrait ? statusBarHeight : 0; frame.size.width -= UIInterfaceOrientationIsLandscape(statusBarOrientation) ? statusBarHeight : 0; frame.size.height -= UIInterfaceOrientationIsPortrait(statusBarOrientation) ? statusBarHeight : 0; } return frame; } - (UIInterfaceOrientation)desiredOrientation { UIInterfaceOrientation statusBarOrientation = [[UIApplication sharedApplication] statusBarOrientation]; AGInterfaceOrientationMask statusBarOrientationAsMask = [self AGInterfaceOrientationMaskFromOrientation:statusBarOrientation]; if(self.supportedInterfaceOrientations & statusBarOrientationAsMask) { return statusBarOrientation; } else { if(self.supportedInterfaceOrientations & AGInterfaceOrientationMaskPortrait) { return UIInterfaceOrientationPortrait; } else if(self.supportedInterfaceOrientations & AGInterfaceOrientationMaskLandscapeLeft) { return UIInterfaceOrientationLandscapeLeft; } else if(self.supportedInterfaceOrientations & AGInterfaceOrientationMaskLandscapeRight) { return UIInterfaceOrientationLandscapeRight; } else { return UIInterfaceOrientationPortraitUpsideDown; } } } -(CGFloat)UIInterfaceOrientationAngleOfOrientation:(UIInterfaceOrientation)orientation { CGFloat angle; switch (orientation) { case UIInterfaceOrientationPortraitUpsideDown: angle = M_PI; break; case UIInterfaceOrientationLandscapeLeft: angle = -M_PI_2; break; case UIInterfaceOrientationLandscapeRight: angle = M_PI_2; break; default: angle = 0.0; break; } return angle; } -(AGInterfaceOrientationMask)AGInterfaceOrientationMaskFromOrientation:(UIInterfaceOrientation)orientation { return 1 << orientation; } //If dealloc is a duplicate method then remove this dealloc method and add the unregisterFromNotifications method in dealloc. - (void)dealloc { [self unregisterFromNotifications]; } -(void)unregisterFromNotifications { //for orientation [[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidChangeStatusBarOrientationNotification object:nil]; [[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidChangeStatusBarFrameNotification object:nil]; } 

• Also in the subView.h file add this line.

   - (void)rotateAccordingToStatusBarOrientationAndSupportedOrientations; 

Now is the time to use the above added code to change the orientation in the preview.

• When adding a subview in a window or self.view like this:

   [objAppDelegate.window addSubview:objViewController.view]; //added this method to rotate subview according to orientation when added [objViewController rotateAccordingToStatusBarOrientationAndSupportedOrientations]; 

Link taken from AGWindowView

Answer 2

UIWindow should have only one subheading that defines the root UIViewController. I believe that UIWindow only transfers rotation events to its first submission.

Create a single UIView container and move it to it.

Answer 3

Movable windows do not rotate by themselves; they usually rotate using the view controller.

You can either add the views that you want to rotate to the viewing controller, and then add them to the window, or you can register for notifications about a change in the device orientation and rotate them yourself.